A FRET based ratiometric fluorescent probe for detection of sulfite in food.

Gongxiao ZhangRuixue JiXiangyu KongFujiao NingAikun LiuJichun CuiYanqing Ge

Published in: RSC advances (2019)

A new fluorophore pyrido[1,2- a ]benzimidazole based ratiometric fluorescent probe for the selective detection of sulfite ions in water was investigated. It shows large (pseudo) Stokes shifts (260 nm), high FRET efficiency, high selectivity and sensitivity. A distinct color change from red to colorless was observed and importantly, it proves to be a convenient and efficient tool to detect the sulfite levels in sugar samples.

Keyphrases

fluorescent probe
living cells
loop mediated isothermal amplification
real time pcr
label free
molecular docking
quantum dots
risk assessment
high resolution
nitric oxide
mass spectrometry
climate change
aqueous solution
structural basis